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Title: Signalling layout for fixed-block railway lines with real-coded genetic algorithms
Authors: Mao, B
Liu, J
Ding, Y
Liu, H
Ho, TK
Keywords: Fixed-block signalling
GA optimisation
Signalling layout
Issue Date: 2006
Publisher: Hong Kong Institution of Engineers
Source: HKIE transactions, 2006, v. 13, no. 1, p. 35-40 How to cite?
Journal: HKIE transactions 
Abstract: Signalling layout design is one of the keys to railway operations with fixed-block signalling system and it also carries direct effect on overall train efficiency and safety. Based on an analysis to system objectives, this paper presents an optimisation model with two objectives in order to devise an efficient signalling layout scheme. Taking into account the present railway line design practices in China, the paper describes steps of the computer-based signalling layout optimisation with real-coded genetic algorithms. A computer-aided system, based on train movement simulator, has also been employed to assist the optimisation process. A case study on a practical railway line has been conducted to make comparisons between the proposed GA-based approach and the current practices. The results illustrate the improved performance of the proposed approach in reducing signal block joints and shortening minimum train service headway.
ISSN: 1023-697X
EISSN: 2326-3733
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